Preliminary Adjustments; Video Signal Input And Output - Promax MC-577 Manuel D'utilisation

USER'S MANUAL MC-577.

4.2.2 Preliminary adjustments

Connect the antenna signal to one of the inputs, RF [20].
If necessary, power the external units (aerial pre-amplifiers or LNB) using switch
VDC [13] (0/13/18 V) and activate the 22 kHz commutation signal placing the 22 kHz
switch [12] in the ON position. When activating the external unit voltage supply, make
sure that the DRAIN luminous indicator [21] remains lit and that the SHORT indicator
[19] stays off.
Using the MON./SPEC key [5], select the Monitor or Spectrum Analyser mode.
You are recommended to first select the complete band Spectrum Analyser mode
(SPAN/MAX key [6] released) to view all the signals present on the band at the same
time.
Adjust the brightness and contrast of the CRT screen with the
controls.
Select the desired frequency band with the VLO [7], VHI [8], UHF [9] and SAT [10]
keys.
Tune to the desired frequency using the TUNING [25] and FINE TUNING [27]
controls, the latter enables a more accurate tuning to be performed, especially in the
UHF band. In the event of the frequency counter display [23] not showing anything,
press the SPAN/MAX key [6] and adjust the represented bandwidth using the SPAN
control [24].
If necessary, use the 20 dB [14], 20 dB [15] and 10 dB keys [16] to select the
appropriate attenuation.
Adjust the volume with the control
order to select the acoustic level signal, this will help you to search for the maximum
signal level without having to continually watch the measurement screen.

4.2.3 Video Signal Input and Output

The MC-577 includes a scart for input/output of audio and video. The instrument
always supplies the video and audio signal received through the RF input [20] by means
of the output pins of this connector (see 4.2.3.1 Scart Description).
The external video and audio signal applied to input pins (see 4.2.3.1 Scart
Description) will be routed to the monitor and speaker if the instrument detects +12 V at
pin 8.
05/2003
[28] or, if you wish, release the control in
[29] and [30]
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